Tetramphora intermedia (Cleve) Stepanek & Kociolek 2016

Lobban, Christopher S. & Witkowski, Andrzej, 2023, Marine benthic diatoms of Guam: new records, Dictyoneis apapae sp. nov., and updates to the checklist, Micronesica 2023 (2), pp. 1-75 : 33-37

Tetramphora intermedia (Cleve) Stepanek & Kociolek 2016

Synonym: Amphora rhombica var. intermedia Cleve

APPENDIX 4. CLASSIFICATION CHANGES SINCE 2012 OF SIGNIFICANCE TO OUR FLORA

Two revisions of Protist classification have been published, most recently by Adl et al. (2019), which included major revision of “centric” diatoms by D.G.Mann. This high-level classification takes account of the major molecular advances in this group over the past decade and accords well with the trees developed by Ashworth and Lam (most recently in Lobban et al. 2022). Sims et al. (2018) erected Odontellaceae , which Mann (in Adl et al. 2019) moved into a new subclass Odontellophycidae. Cox (2015) gave a complete analysis of the diatom genera in the Syllabus of Plant Families, but introduced a number of taxa as “nom. prov.,” which are invalid designations ( ICN Art. 36.1: Turland et al. 2018). Subsequently Medlin (2016) proposed the Urneidophycidae, which includes Asterionellopisis (very basal) along with Rhaphoneidaceae and Plagiogrammaceae , to which Lobban & Ashworth (2022a) added Koernerellales / Koernerellaceae for Bleakeleya (which had been misplaced in Asterionellopsidaceae ), Koernerella and Perideraion (which had been overlooked in other classifications). Lobban et al. (2022) revised the Ardissoneaceae ( Ardissoneales ) to include six genera including Toxarium and Climacosphenia .

APPENDIX 5. GUAM TYPE SLIDES IN U.S. DIATOM HERBARIA

The many type slides for new species reported from Guam add up to a sizeable collection of materials available in North America, since each slide is a strew from a sample and contains many more taxa than just the one (occasionally more) designated types. These can be resources for diatomists studying tropical marine benthic taxa. Fifty-six slides are listed by sample number under one of the two herbaria ( CAS and ANSP). In addition, a selection of 108 slides from the region was donated to the Diatom Herbarium at U. Szczecin, Poland ( SZCZ); a spreadsheet listing these is in the Supplementary Material (https://micronesica.org/file/1131/download?token=bpmWANDN) .

Sample # Orig. slide Accession Slide # Types includeda # #

California Academy of Sciences GU7N unnumbered 627384 223006 Perideraion montgomeryi GU 7X-7 1319 627426 223042 Rhoiconeis pagoensis GU 32B 806 627397 223012 Mastogloia lyra GU 44AA-5 445 627406 223020 Cyclophora castracanei GU 44 AJ 861 627416 223028 Licmophora comnavmaria GU 44AK-6 958 627425 223041 Colliculoamphora gabgabensis GU 44AL-3 927 627403 223017 Licmosphenia peragallioides GU 44BD-4 1567 627422 223039 Grammatophora ornata GU 44I-1 494 627427 223043 Lauderia excentrica and Colliculoamphora gabgabensis paratype GU44I-4 235 627405 223019 Cyclophora minor GU 44L-A 485 627423 223039 Rhoicosigma parvum paratype GU44U-1A 168 627394 223008 Mastogloiopsis biseriata paratype GU44U-1B 200 627421 223038 Druehlago cuneata GU 44V-1 unnumbered 627375 222100 Climaconeis undulata voucher GU44Y-13 unnumbered 627373 222098 Climaconeis guamensis GU 44Z-15 453 627409 223023 Astrosyne radiata GU 44Z-15 not noted 627383 223005 Gato hyalinus GU 44Z-15 451 627396 223010 Hanicella moenia GU 44Z-15 unnumbered 627386 223007 Perideraion spp. , including P. elongatum GU 52J-3 254 627414 223026 Cyclophora tabellariformis paratype GU52K-2 866 627404 223018 Licmosphenia albertmannii and L. leuduger-fortmorelii GU 52O-4 1696 627432 223050 Arcuatasigma arenicolum , A. marginale , and Progonoia diatreta GU 54B-4 113 627397 223011 Mastogloia parlibellioides GU 55B-4-1 unnumbered 627376 223001 Climaconeis petersonii

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